IEEE 802.15.4 subsystem
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| 1 | /* |
| 2 | * common/io.h - I/O pin assignment |
| 3 | * |
| 4 | * Written 2010 by Werner Almesberger |
| 5 | * Copyright 2010 Werner Almesberger |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; either version 2 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | */ |
| 12 | |
| 13 | |
| 14 | #ifndef IO_H |
| 15 | #define IO_H |
| 16 | |
| 17 | /* Diagnostic LED */ |
| 18 | |
| 19 | #define LEDv1 P1_3 |
| 20 | #define LEDv2 P2_2 |
| 21 | |
| 22 | /* Probe input */ |
| 23 | |
| 24 | #define PROBE_T0 P1_0 |
| 25 | #define PROBE_ECI P1_1 |
| 26 | #define PROBE_INT0 P0_7 |
| 27 | |
| 28 | /* |
| 29 | * Probe termination |
| 30 | * |
| 31 | * - v1: 100 kOhm termination (not very useful) |
| 32 | * - v2: pull-up for input amplifier |
| 33 | * - v3: 330 Ohm termination |
| 34 | */ |
| 35 | |
| 36 | #define PROBE_TERM P1_2 |
| 37 | |
| 38 | /* |
| 39 | * Version ID |
| 40 | * |
| 41 | * In version 1, P2_1 is used to provide ground to the input side. In version |
| 42 | * 2, we use a ground place for this and P2_1 is unconnected. We can therefore |
| 43 | * use it to identify the hardware version. |
| 44 | * |
| 45 | * In version 3, P2_0 is connected to ground. In all other versions, it is |
| 46 | * unconnected. |
| 47 | * |
| 48 | * Board VERSION_ID1 |
| 49 | * | VERSION_ID2 |
| 50 | * | | |
| 51 | * v1 0 Z |
| 52 | * v2 Z Z |
| 53 | * v3 Z 0 |
| 54 | * |
| 55 | */ |
| 56 | |
| 57 | #define VERSION_ID1 P2_1 |
| 58 | #define VERSION_ID2 P2_0 |
| 59 | |
| 60 | #endif /* !IO_H */ |
| 61 |
